Drive Power Sources
“all the turning of the iron for the cotton machinery built by Mr. Slater was done with hand chisels or tools in lathes turned by cranks with hand power”. David Wilkinson
Machine tools can be powered from a variety of sources. Human and animal power were used in the past, as was water power; however, following the development of high pressure steam engines in the mid 19th century, factories increasingly used steam power. Factories also used hydraulic and pneumatic power. Many small workshops continued to use water, human and animal power until electrification after 1900.
Today most machine tools are powered by electricity; however, hydraulic and pneumatic power are sometimes used, but this is uncommon.
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Famous quotes containing the words drive, power and/or sources:
“To drive Paul out of any lumber camp
All that was needed was to say to him,
“How is the wife, Paul?” and he’d disappear.”
—Robert Frost (1874–1963)
“The bitterest creature under heaven is the wife who discovers that her husband’s bravery is only bravado, that his strength is only a uniform, that his power is but a gun in the hands of a fool.”
—Pearl S. Buck (1892–1973)
“The American grips himself, at the very sources of his consciousness, in a grip of care: and then, to so much of the rest of life, is indifferent. Whereas, the European hasn’t got so much care in him, so he cares much more for life and living.”
—D.H. (David Herbert)